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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Marion Municipal Water Department

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2012-07-241919535ND
2012-07-241919536ND
2013-07-301997643ND
2013-07-301997644ND
2014-07-162065518ND
2014-07-162065519ND
2015-07-141G51128-02ND
2015-07-141G51128-01ND
2016-07-061G60334-01ND
2016-07-061G60334-02ND
2017-07-051G70193-01ND
2017-07-051G70193-02ND